漂浮式风力机结构动力学响应TMD控制及其参数优化研究

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Abstract Studying stability of floating offshore wind turbines is a challenging problem in wind power field.Here,turbulence wind and irregular wave models with sharp fluctuations both in velocity and direction were established,respectively based on the turbulence wind spectrum and the wave one.An ITI Energy Barge platform floating wind turbine was taken as a study object.The stability control was conducted for the floating wind turbine with TMD equipped in its nacelle.Dynamic characteristics of the TMD floating wind turbine under the action of wind combined with wave were calculated based on the aerodynamic-hydrodynamic-servo-elastic simulation platform FAST.Furthermore,the multi-island genetic algorithm was used to optimize TMD structure parameters including mass,stiffness and damping.The results showed that the wind turbine nacelle equipped with TMD can realize the floating wind turbine’s stability control to obviously reduce amplitudes of platform sway and roll motions,and lateral displacement of platform tower top; lateral displacement of tower top and amplitude of platform roll firstly decrease and then increase with increase in TMD mass,while changes of TMD’s stiffness and damping have little effects on them; the TMD optimal structure parameters are mass of 21 393 kg,damping of 13 635 N/(m/s) and stiffness of 6 828 N/m; after equipped with the optimal TMD,the wind turbine rolling motion and its lateral displacement of tower top drop more obviously,their stabilities increase by 53% and 50%,respectively; the effectiveness and reliability of the proposed TMD control,optimization method and optimization results are verified with the calculation results; the study results can provide a reference for the stability study on offshore floating wind turbines.

Key words： floating wind turbine TMD Multi-Island Genetic Algorithm roll turbulent wind irregular wave

Received: 19 July 2017 Published: 28 November 2018

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	Articles by authors
	DING Qinwei
	HAO Wenxing
	LI Chun
	YE Kehua
	WANG Yuanbo

Cite this article:

DING Qinwei,HAO Wenxing,LI Chun, et al. TMD Control and its parametric optimization for structural dynamic response of a floating wind turbine[J]. JOURNAL OF VIBRATION AND SHOCK, 2018, 37(23): 61-70.

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http://jvs.sjtu.edu.cn/EN/ OR http://jvs.sjtu.edu.cn/EN/Y2018/V37/I23/61

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